Astronomy calendar 2021: when to see full moons, planets, eclipses and meteor showers

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There will be full moons, meteor showers, eclipses, and planets visible in the morning and evening skies across the world in 2021.

The Quadrantid meteor shower on January 3 kicked off the first of 12 meteor showers in 2021.

The biggest barrier to the possibility of seeing meteor showers that are only visible from certain hemispheres – outside of your location – is the brightness of the moon. The fuller the moon, the harder it is to see meteors cross the sky.

There’s a bit of a wait until the next meteor shower, the popular Lyrids in April. The Lyrids will peak on April 22 and be best seen in the Northern Hemisphere – but the moon will be 68% full, according to the American Meteor Society.

The Eta Aquariids follow shortly thereafter, peaking on May 5 when the moon is 38% full. This downpour is best seen in the southern tropics, but will still produce an average downpour for those north of the equator.

The Milky Way is seen from Glacier Point Trailside in Yosemite National Park, California.

Delta Aquariids are also best seen from the southern tropics and will peak between July 28 and 29 when the moon is 74% full.

Interestingly, another meteor shower peaks on the same night – the Alpha Capricornids. Although this is a much weaker downpour, it is known to produce brilliant fireballs during the peak. And it will be visible to those on either side of the equator.

The Perseid meteor shower, the most popular of the year, will peak between August 11 and 12 in the northern hemisphere, when the moon is only 13% full.

Here’s the meteor shower schedule for the rest of the year, according to EarthSky’s meteor shower outlook.
  • October 8: Draconids
  • October 21: Orionides
  • November 4 to 5: Taurides du Sud
  • November 11 to 12: Taurides du Nord
  • November 17: Leonids
  • December 13 to 14: Geminids
  • December 22: Ursides

Full moons

Typical of a normal year, 2021 will also have 12 full moons. (Last year had 13 full moons, including two in October).

Here are all of the full moons that occur this year and their names, according to The Old Farmer’s Almanac:
  • January 28 – Wolf moon
  • February 27 – Snow moon
  • March 28 – Worm moon
  • April 26 – Pink Moon
  • May 26 – Flower Moon
  • June 24 – Strawberry moon
  • July 23 – Buck moon
  • August 22 – Sturgeon moon
  • September 20 – Harvest Moon
  • October 20 – Hunter’s moon
  • November 19 – Beaver Moon
  • December 18 – Cold moon

Solar and lunar eclipses

This year there will be two solar eclipses and two moon eclipses – and three of them will be visible to some in North America, according to The Old Farmer’s Almanac.

A total lunar eclipse will occur on May 26, best seen for those of western North America and Hawaii from 4:46 a.m. ET to 9:51 a.m. ET.

An annular solar eclipse will occur on June 10, visible over northern and northeastern North America from 4:12 a.m. ET to 9:11 a.m. ET. The sun will not be completely blocked by the moon, so be sure to wear eclipse glasses to view this event safely.

November 19 will see a partial lunar eclipse, and sky watchers in North America and Hawaii will see it between 1 a.m.ET and 7:06 a.m.ET.

And the year ends with a total solar eclipse on December 4th. It won’t be seen in North America, but those in the Falkland Islands, the southern tip of Africa, Antarctica, and southeast Australia will be able to spot it.

Visible planets

Skywatchers will have multiple opportunities to spot planets in our skies on certain mornings and evenings throughout 2021, according to planetary guide The Farmer’s Almanac.

Most of them can be seen with the naked eye, with the exception of distant Neptune, but binoculars or a telescope will provide the best view.

Mercury will look like a bright star in the morning sky from February 28 to March 20, June 27 to July 16, and October 18 to November 1. It will shine in the night sky from January 15 to January 31, May 3 to May 24 August 31 to September 21, and November 29 to December 31.

Venus, our closest neighbor in the solar system, will appear in the eastern sky on the mornings of January 1 through 23 and in the western sky at dusk on the evenings of May 24 through December 31. It is the second brightest object in our sky after the moon.

3 missions prepare to explore Mars and other space news expected in 2021

Mars makes its reddish appearance in the morning sky between November 24 and December 31, and will be visible in the evening sky between January 1 and August 22.

Jupiter, the largest planet in our solar system, is the third brightest object in our sky. It will be on display in the morning sky between February 17 and August 19. Look for it on the evenings of January 1 to 9 and August 20 to December 31 – but it will be at its peak from August 8 to September 2.

Saturn’s rings are only visible through a telescope, but the planet itself can still be seen with the naked eye on the mornings of February 10 to August 1 and the evenings of January 1 to 6 and August 2 to December 31st. brighter from August 1 to 4.

Binoculars or a telescope will help you spot the greenish glow of Uranus on the mornings of May 16 to November 3 and the evenings of January 1 to April 12 and November 4 to December 31 – but at its most vivid from August 28 to 31 December.

And our furthest neighbor in the solar system, Neptune will be visible through a telescope on the mornings of March 27 to September 13 and in the evenings of January 1 to February 23 and September 14 to December 31. It will be at its peak between July 19 and November 8.

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